Manufacture of nitro products from petroleum and tar.



v the Manufacture of h ALBERT S. FLEXER, OF VIENNA, AUSTRIA-HUNGARY.

MANUFACTURE OF NITRO PRODUCTS FROM PETROLEUM AND TAR.

No Drawing.

To all whom it may concern Be it known that I, ALBERT S. FLEXER,manufacturer, :1 subject of the. Austro-I'lungarian Emperor. andresident of Vienna, Austria-llungar have invented certain new and usefulImprovements in or Relating to "tro lroducts from Petroleum and Tar. ofwhich the following a specification.

The manufacture of nitro products from crude petroleum or from petroleumdistillates is already known. It. has. however hitherto been impossibleto produce nitro products from pure petroleum which in the trade isgenerally known as lamp oil or etroleum for lighting purposes. Yow ithas been found that this is rendered possible if pure petroleum isnitrated in the presence of tar, and a preferable manner oi effectingthis is as follows: About 40 parts by weight of distilled lamppetroleumare first of all intimately mixed with about (3 parts by weightof tar, preferably wood tar. To this mixture are added advantageously inthe form of drops about 10 parts by weight; of nitric acid, whileconstantly agitating and cooling the mixture. This results in an intenseaction of the nitric acid with the generation of vapors of a vellow to areddish brown color. After a few hours two orange colored or reddishyellow oils-a re obtained by filtering which have (liil'erent specificweights and different. color intensity and form separate layers. while asolid resinous nitro product remains on the. filter in the form of adeep or black-brown mass. In this way there are obtained lirstly twoliquid oily products, and secondly a solid resinous product. The oilynitro products ohtained allow of being mixed with all oils as well aswith glycerin and after heine shaken for some time withwat r, preteraolywith an addition of absolute alcohol, give a white fairly stableemulsion. This emulsion may be employed. for impregnating building materials such as lime and cement mortar and rendering them. water proof,so that they are insulated against. moisture and are at the same timepreserved and protected against i Specification of Letters Patent.

pores.

Patented J 11110 16, 1914.

Application flied July 21, 1913, Serial No. 780,161.

wall fungus. The resinous nitro products are for the most part solublein water. have a smaller specific weight than ta and may lie meltedtogether so as to form an asphaltlike mass. They may be vul anized.that: is to say. in being treated with sulfur dissolved in carbonicdisultid they assume a considerable solidit and an appearance ofcaoutultouc-lllfl. nature. They may also be ground up finely and mixedwith cement. ii. e or chalk. In this mixture. the tar .nitr'at'e powderwill spread into the pores: of the mortar. when. under the influence ofthe alkali earths, an inc-reuse in volume w'll take place. that servesto entirel close. up the The mortar thus protects the ma sonry thepassage of water. so that it becomes insulated accordingly.

The importance. of this invention resides more particularly in'tlie factthat it enables the known preserving: and insulating properties of thepetroleum and of the tar to be utilized. whereas hitherto this wasimpossible with the products not preliminarily treated owing to thesmell and the color as well as owing'to their incapahility of mixingwith other oils and fats.

lvhut-l claim is:-- l. pro ess For the manufacture of nitroproducts"from a mixture of petroleum and tar with the aid of nitric acidconsi ting in subjecting petroleum in the presence ot tar to the actionof concentrated nitric acid and cooling.

2. A process for the manufacture of nitro products which consists inmixing about 40 parts by weight of distilled lamppetroleum ALBERTFLEXER.

\Vitnesses:

.Tosnr SCH MEIDEL, AUGUST FUGGE'R.

iinst rising i'noisture and anui-nst'

